Re: [cip-dev] [PATCH v2 4.19.y-cip 0/7] Add RPC-IF driver for RZ/G2x SoC's

From: "Lad Prabhakar" <prabhakar.mahadev-lad.rj@bp.renesas.com>
To: Pavel Machek <pavel@denx.de>
Cc: "cip-dev@lists.cip-project.org" <cip-dev@lists.cip-project.org>,
	Nobuhiro Iwamatsu <nobuhiro1.iwamatsu@toshiba.co.jp>,
	Biju Das <biju.das.jz@bp.renesas.com>
Subject: Re: [cip-dev] [PATCH v2 4.19.y-cip 0/7] Add RPC-IF driver for RZ/G2x SoC's
Date: Wed, 25 Nov 2020 08:49:32 +0000	[thread overview]
Message-ID: <OSBPR01MB504836177875007ABDF2C00BAAFA0@OSBPR01MB5048.jpnprd01.prod.outlook.com> (raw)
In-Reply-To: <20201124194918.GB4916@amd>

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Hi Pavel,

> -----Original Message-----
> From: Pavel Machek <pavel@denx.de>
> Sent: 24 November 2020 19:49
> To: Prabhakar Mahadev Lad <prabhakar.mahadev-lad.rj@bp.renesas.com>
> Cc: cip-dev@lists.cip-project.org; Nobuhiro Iwamatsu <nobuhiro1.iwamatsu@toshiba.co.jp>; Pavel Machek
> <pavel@denx.de>; Biju Das <biju.das.jz@bp.renesas.com>
> Subject: Re: [PATCH v2 4.19.y-cip 0/7] Add RPC-IF driver for RZ/G2x SoC's
> 
> Hi!
> 
> > This patch series adds SPI driver for the Renesas RPC-IF.
> > Alongside relevant changes for spi-mem have been also
> > backported. This enables accessing SPI flash chip connected
> > to RPC-IF on RZ/G2x boards.
> >
> > We currently only aim to backport just the driver hence there
> > are no changes to dts/i files. The driver has been tested on
> > RZ/G2{EM} with all the required dts/i changes [1].
> 
> Okay, that was quick.
> 
> What is your plan, merge dts changes soon? Or is the driver useful
> even without the dts changes?
> 
We only plan to upstream/backport driver, pinctrl and clock atm (consumers needing this feature will have to manually enable the DTS)

> > Changes for v2:
> > * Patches {1, 3, 4}/7 unchanged
> > * Patch 2/7
> >    * Fixed reference leak for OF node in rpcif_probe()
> >    * Fixed overwriting return value in error path of rpcif_manual_xfer()
> >    * Replaced C++ style comment with C style
> >    * Replaced tab with a space between struct and struct name
> >    * Fixed a typo in commit message (s/absract/abstract)
> > * Patch 5/7
> >    * Fixed reference leak in spi_mem_access_start for PM
> > * Patch 6/7
> >    * Return early in spi_mem_dirmap_dirmap_{read/write}
> > * Patch 7/7
> >    * Replaced C++ style comment with C style
> >    * Used __maybe_unused for rpcif_spi_{suspend,resume} and dropped
> >      CONFIG_PM_SLEEP ifdef checks
> >    * Elaborated the description for SPI_RPCIF config
> >    * Dropped the label err_put_ctlr from rpc_spi_probe()
> 
> Thanks for the changes; they are probably good (I have yet to take
> close look), but I wonder if we should wait until they hit next or
> mainline? If upstream maintainer disagrees, we would get divergence...
> 
Agreed when the fixes hit linux-next I shall post a v3.

Cheers,
Prabhakar

> Best regards,
> 								Pavel
> --
> DENX Software Engineering GmbH,      Managing Director: Wolfgang Denk
> HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany

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